HP DDL D40 Reference Manual page 165

Definition Attributes
Bit Field Output for pTAL and TAL. The following examples show how DDL
translates definitions and descriptions of bit fields into TAL source code:
DDL Type
DEF Bit-1 TYPE BIT 1.
DEF New-Bit-1 TYPE Bit-1.
DEF Bit-10 TYPE BIT 10 UNSIGNED.
DEF Bit-Map.
2 Bits-8 TYPE BIT 8.
2 Bits-3 TYPE BIT 3 UNSIGNED.
2 Bits-10 TYPE BIT 10.
End.
DEF Bit-Struct.
2 Bits-0 TYPE Bit-1.
2 Bits-1-To-10 TYPE Bit-10.
End.
DEF Bit-Fillers.
2 Field-1 Type Character 3.
2 Filler Type Bit 4.
2 Bit-Field-1 Type Bit 5.
2 Filler Type Binary 16.
2 Field-2 Type Binary 32.
End.
Data Definition Language (DDL) Reference Manual—426798-002
pTAL or TAL Type
INT BIT^1;
INT NEW^BIT^1;
INT BIT^10;
STRUCT BIT^MAP^DEF (*) FIELDALIGN (SHARED2);
BEGIN
UNSIGNED(8) BITS^8;
UNSIGNED(3) BITS^3;
BIT_FILLER 5;
UNSIGNED(10) BITS^10;
BIT_FILLER 6;
END;
STRUCT BIT^STRUCT^DEF (*) FIELDALIGN(SHARED2);
BEGIN
UNSIGNED(1) BITS^0;
UNSIGNED(10) BITS^1^TO^10;
BIT_FILLER 5;
END;
STRUCT BIT^FILLERS^DEF (*) FIELDALIGN(SHARED2);
BEGIN
STRUCT FIELD^1;
BEGIN STRING BYTE[1:3]; END;
FILLER 1;
BIT_FILLER 4;
UNSIGNED(5) BIT^FIELD^1;
BIT_FILLER 7;
FILLER 2;
INT(32) FIELD^2;
END;
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TYPE Clause